Fastening device



Nov. 5, 1929. A. R. WELLS FASTENING DEVICE Filed A ri'i 4, 1928 4 Kg? g/ 6 z Z i 5 $39. Egg/,

In V6]? for Milan! 0% Patented Nov. 5, 192 9 PATENT OFFICE ALBERT RANDALL WELLS, OF LONDON, ENGLAND FASTENING DEVICE I Application filed April 4, 1928, Serial No. 267,286, and in Great Britain April 13, 1927.

This invention relates to improvements in fastening devices, designed primarily for securing together wall-board,-wod-work, floor boards and like materials.

The object of the invention is to provide a.

fastening device which can be readily stamped from flat metal, and so formed asto provide parallel legs'connected together by a cross bar to aflord convenient means for driving the fastener intoa piece of wood or the like.

A further object of the invention is to provide a fastening device so constructed that vide a fastening device with beveled terminals, whereby when driving the device into a piece of material, or a piece of material is pressed on the device, the legs will be deflected to anchor the legs in the material.

' The invention also comprehends improvements in the details of construction and arrangement of parts whiclrwill be hereinafter described and particularly pointed out in the claims.

In the drawings:

Figure 1 is an end elevation of my improved fastening device.

Figure 2 is a side view of the same. Figure 3 is a similar view of a slightly different fQr'n of the invention.

Figure 4 is a view illustrating the fastening device shown in Figure 1 inposition 'when 4 securing two pieces of wood together.

Figure 5 is a side elevation of the fastening device illustrating shoulders onthe sides of the legs";

Figure 6 is a central vertical section through the construction shown in Figure 5.

-The numeral 1 indicates the fastening device as a whole, same comprising a pair of parallel legs 2, 2 and an intermediate cross bar 3 connecting the legs. As shown in Figure 1, the terminals of the legs are beveled,

. anch as at 4, to form sharp edges 5. The beveled terminals of the two legs, as shown iii Figure 1, are on opposite faces of the legs to deflect the legs when embedded in wood, as shown in Figure 4. The beveled section of the terminals may be on the outer edges of the legs, as shown in Figure 3, so that when the legs are embedded in the wood they curve inwardly to form a binding action between H the two pieces of material secured together.

If desired, the cross bar 3 may be beveled on its side faces to form a sharp edge 6, as shown in Figure 6. In-Figures 5 and 6 I have also shown a further development of the invention, in that the legs above the hori- 9 I zontal planeof the cross bar are reduced in width to provide outer edge shoulders 7.

In use, the fastening device is driven intoapiece of wood by striking the cross bar with a hammer or other-tool, the device of 79 course being made flat and of such suitable material that it will bend. Hence accordifig to the angle and location of the bevel at the terminals of the legs, the lower portions of the latter when driven into the wood will be deflected from a vertical plane to form an anchor. The device is driven into the wood until the top surface of the cross bar is in the same plane as the surface of the pieceof woodit is driven into. When the device is thus 80 anchored, a second piece of wood is pressed or hammered down on the upper ends of the legs, and the latter are deflected and form an When the form of the device shown in Figure 5 is used, it is evident when forcing or hammering the upper piece of wood on the legs, less resistance will be required and at the same time the lower portions of the legs will be ofsufficient strength to stand the blows of the tool, incident to first driving the device in the wood to anchor it.- Then, by bevelin the cross bar it readily cuts into the wood w en the device is driven in place.

What I claim is: V 1. A? fastening device comprising two parallel legs havmg their terminals beveled to form sharp edges, and. an intermediate cross bar connecting said legs, the crossbar serving as a means to receive a blow from a tool to drive the device into the material being fastened, and the beveled sharp edges serving as a means for deflecting the legsabove and below the cross bar when applying the 5 fastener. 4 2. Afasteningdevice comprising two fiat parallel legs having their terminals beveled to form sharp edges, and a fiat intermediate cross bar connecting said legs, the outer edges 13 of the fiat legs above the fiat cross bar belng reduced in Width to form outer shoulders in substantial alignment with the top edge of the flat cross bar, the flat cross bar serving as a means to receive a blow from a tool to 15 drive the device into the material being fastened, and the beveled sharp edges serving as a means for deflecting the fiat legs above and below the cross bar when applying the fas- 1 tener. ALBERT RANDALL WELLS. 

